NEW NUCLEIDE ACTINIUM-231
A new nuclide Ac/sup 231/, was identified from the reaction of Th/sup 232/( gamma ,p)Ac/sup 231/ induced by the 25-Mev bremsstrahlung. The activity was chemically separated from fission products with the aid of a recoil method. The half life of this new isotope was found to be T/sub 1/2/, = l5 plus or minus 1 min and the end-point energy of the BETA ray was E/sub BETA / = 2.1 plus or minus 0.1 Mev. Several weak gamma rays were also observed. (auth)
- Research Organization:
- Tokyo Univ.
- NSA Number:
- NSA-15-005697
- OSTI ID:
- 4083328
- Journal Information:
- Nuclear Phys., Journal Name: Nuclear Phys. Vol. Vol: 21
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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